Gear-casing for power transmission.



LA VERNE'INOYES.

GEAR CASING FOR POWER TRANSMISSION. APPLICATION mu) OCT. 1. I914.

1, 14: 1,356. Patented June 1, 1915.

2 SHEETSSHEET l- LA VERNE NOYES.

GEAR CASING FOR POWER TRANSMISSION.

APPLICATION FILED 0.0111. I914.

Patented June 1, 1915.

2 SHEETS--SHEET 2.

1 1111111. 1 MM; W 1 A V 2 T 1. 1i 21:

ST PLi-Y ENT ()FFICE...

LA NOYES, B CHICAGO. ILLINOIS. ASSIGNOB. TO AERMOTOE COMPANY, .OF CHICAGO ILLINOIS, A CORPORATION OF ILLINOIS.

Specification tr Letters Patent.

Patented June i, 193 5.

Application filed October 7. 1914. Serial No. 865,454.

.useful Improvement in'Gear-Casings or Power Transmission, of which the following 1s a full, clear, concise, and exact descriptlon, reference being had to theaccornpanyingdrawings, forming a part of this spcci-.

fication.

My invention relates to gearing structures employing meshed gears and pitmen oper- ';ated thereby and has for its object the proyision of a housing for the gearing and the moving parts appertaining thereto whereby fi'ipper'porti'on of the the working parts will be closely covered with due allowance for the range of movement of the shifting elements thereof.

The device of my invention is of particular service in the construction of the power transmitting gearing portions of wind mills. The housing is desirably made in part of a hood or cover formed of a single sheet of metal and which may hesupplemented by an inner flange at the base thereof to form a. circumscribi'ng groove of a lubricant containing'basin which is also desirably employed, in conjunction with the hood, completely to inclose the gearing. The hood, viewed in plan,

i has a ,contour which defines a geometrical longer sides the longer or major figure having axes which are generally per- ;pendicu'lar 'to the sides of the figure that is defined hythe contour at the base of the hood. .Each of these figures is perfectly for receiving the rim polygonal and substantially parallelogram-- matic and the diagonal axes of the first figure are desirably of unequal length and perpendicular to the sidesof the figure defined by the contour of the base of the hood; Ad-

jacent sides of the figure defined by the base of the hood are of unequal length, the longer,

sides being, parallel with the planes of movement of .the incloszd V diagonal axis of the top of the hood is perpendicular. By this generally described construction the objects of my invention are attained. I will explain my invention more ,fullyby the accompanying drawing bodiment thereof and in which- V Fi'gurelis a side elevation of av structure embracing my invention; Fig.2 1:; a view in pitmcn and towhich 'pinions 11 for elei ation taken in a direction at right anqlcs to that in which Fig. 1 is taken; Fig. 3 is a plan view; Fig. 4 shows the gearinq in one elevation. the hood being taken in section on line i- 4 of Fig. Fig. is another ele ation with the. hood taken in section on line 5 5 of Fig. 3; Fig. 6 is a view of a sheet metal stamping that may be folded to form the hood; and Fin. 7 is a detail of a io n t that is desirably made in the formation of the hood. Like parts areindicated by similar characters ot'rcference throughout the different.

figures.

The portion of the wind mill structure shown includes the top portion of a tower 1 that terminates in a stationary upright tubular column 2 whose reduced upper end constitutes an upright shaft 3 affording an upright axis about which the Wind mill head 4 may turn upon a step bearing ring 5 supported upon the lower column portion. The head 4- is enlarged int6=an oil cham er or basin (3, constituting the preferred "form of base portion of the housing, that may contain lubricant for the gearing of the mill. A chamber closing hood 7 has sheds 8 and 9 between which'the basin. rim is received and which respectively prevent entrance of water and exit of oil at said rim. The wind 1 mill 10 is jourrialed' in cnlaruemcnts of walls of the basin (3 and carries two upright driving the upright pump or load rod 12. Upright transmission gears 13 are in mesh with pinions 11 adjacent the load rod and are journaled within a bearing licarried by the head 4. Pitmen 15 connect gears 13 with the upper end of the load rod 12. A stirrup 16 is fined upon the upper end of the load rod and carries hearings in which a aft 17 turns. The outer ends of this shat are preferably in fixed c nnec tion with the upper, ends of the pi'tmen 15 whereby the pitmen are maintained in proper interrelation without relying upon a guide structure to perform this function. The gears andpitmen are equidistant from a" plane. parallel to the gears and which plane include ,the axis of the loadshaft whereby. theni'iving force upon the load rod is evenly distribnted. T-he he'adi i carries an upright Mirrup 18 whose; parallel branches constitute upright gurdes'thht are simultaneou sl received in' -the grooved anti friction wheel or roller 19 that turns on or with respect to the shaft 17. S a1d roller isnected extend much farther upon one side of. the load rod 12 than the pinions 11 extend upon the opposite side of such rod and that the 'piine'is 11 do not extend very \far beyond the portion 18 of the mill head upon' which the inverted stirrup 18 is mounted. The basin 6, therefore, projects 'much farther upon one side of the loadrod 12 (there to. accommodate; the gears 13 and the movement of the lower ends of the pitmen) than itdoesupon the other whereby-that side of the hood 7 that engages the portion .datc the-movement of the pitmen.

contour of the bottom of the hood substanof the basin-.6 where the pinions 11 are Y mounted may be substantially vertically disposed while the opposite wall of the hood I may. slope downwardly away from the aforesaid.vcrtical wall of the hood to accommo- The ' tially defines a parallelogram as does the contour at; the top of. the hood, the diagonal axes ofthe top of the hood intersecting at the axis of the load rod and being substantiallyperpendicular tothe sides of the geometrical. figure. at the bottom ofthe .hood. One ofthe diagonals of the top of the hood ,is in thej same vertical plane with the in- .verted stirrup'18'and th'eother'of these diagonals is in-the same vertical plane wath' the axis of the-shaft 1:7 and the plane of movement of the upper ends of, the pitmen,

- and-inasmuch as the shaft 17 is.longer'than "the width of the stirrup 18 the diagonal of the top' of the cover that is in the same ver tical" plane with the axis of the shaft is longer than the remaining diagonal of the mat bottom of the -hood, while thev remaining ting structure.

clearance-.betweeh the upper portion of the hood and. the contiguous power transmit- The hood is formed. with eight triangular faces each ot four'of which being defined by the sides of the parallelogrammaticfigure defined by the contour of the to of the hood 'and the respectlvely undeflg'ing corhers of thef-parallelogram' figure definedfby the'contoui of the four faces are defined by the sides of'the all ogrammatic 'llelo rammatie. fi re defined by the iz dli the bottom b f thehogd and the ive'l over! in corners o t e parres 1y fi gnr e defined by the contour of'the "top of the hood. By the formation of the hood described there-Ire atforded each other and substantially parallel with' the planes movement of the pitmen, the' walls and the remaining six walls or faces .of the hood being brought into very close proximity with the power transmitting, mechanism carried u on th0' l16i'.d of the wind mill with due al owance for the move ment'of the pitmen 15 by the sloping wall- 5 portions of the hood which rise from the. part of thebasin 6 upon the same side of" the. load rod 12 upon which the major parts of the pinions 13 are disposed. I

In the process of manufacturing the hood go a stamping is desirably made in the form illustrated in Fig. 6,- this stampin' including two extensions 22 that are fofiiedv into." interlocking ngagementg'in the formation 0f the. hood, to constitute a seam with the as interlocking formation ill'ustrated in Fig. 7. The upper end of the stamping termlmates in four triangular wings 23 whose apex portions are provided with circularopenings 24 that are brought into register when g the stamping is folded, the. wings 23 then jointly servin to form the top'wallf'of the hood. A tu ular washer 25 is" passed through the alined openings 24'and-1s up; set to form a tubular rivet that will niain 9i tain the triangular wings in assembly, thethreaded stem 20 .passin directl through the bdge of the. washer w en-the ood is to. be mounted in place. The material of which the hood is made is preferably sheet iron. 10:

that is thoroughly galvanized to seal the joints'at the seam 22 and between the wings 1 23 to make the hood weather proof. v

The present invention embraces a can.

structure which is inclusive of a novel orm- 1'0 of housing. There are characteristics herem. disclosed which are claimed'in other eta--- pending applications. Referenceis'made to my applications Serial No. 830 627, filed --;April .9, 1914 and Serial No. 8652451, filed 111 October 7, 191 1. v p

- \Vhile I have herein shown and particularly described the preferred embodiment of my invention I do not w sh .tc be llmatad I tothe precise details of construction shown 1 as changes may a'eadily be made without departing from the spirit of my nvention, u is;

' Having thus described my invention '1 claim as new and desire to secure by .-Lt'. it

' ters Patent the following:.

1. A gear structure including the Base.

portion of a housing; two upright pinions 'mounted in such base portion, two upright gear wheels in mesh'with said pinions; aniiz. upright load rod disposed between -the planes of rotation of said gears and pinions and located near their place of meshing;

pltnien'connectingthe gear wheelswith t upper end of the load rod aguide for 18 the hood.

rod, one of the aforesaid axes being included substantially in the plane of movement of the upper ends of the pltmen. the contour of the bottom of the,hood defining .a pa-rallelogrammatic figure having two sides substantially parallel with the planes of movement of-the pitmen and longer than the remaining sides, the axes at the top of: the hood being perpendicular to the sides of the figure at the bottom of the hood1 the sides of the hood having eight triangular faces each of four of which being defined by the sides of the parallelogrammatie figure defined by the contour of the top of the hood and the respectively underlying corners of the parallelogrammatic figure defined by the contour of the bottom of the hood, While the remaining four faces are defined bv the sides of the parallelogrammatic figure defined by the contour of the bottom of the hood and the respectively overlying corners of the parallelogrammatic figure defined by the contour of the top of 2. A gear structure including the base portion of a housing; two upright pinions mounted in such base portion; two upright gear wheels in mesh with said pinions; an upright load rod disposed between the planes of rotation of said gears and pinions and located near their place of meshing;

pitmen connecting the gear wheels with the upper end of the load rod; a guide for directing the upperends of the pitmen and load rod in their movement; and a hood fastened into engagement with the base portion of the housing and covering said pinions. gear wheels. 'pitmen and guide. the

top of the hood'having a contour which defines a parallelogranunatic figure one of whose diagonal axes is substantially in the plane of movement of the upper ends of the pitmen, the contour of the bottom of the hood also defining aparallelogrammatic figure having two sides substantiallv paral- 191 with the planes of movement of the pitnicn and longer than the remaining sides, the axes at the top of the hood being perpendicular to the sides of the figure at. the bottom of the hood, the sides of the hood having eight triangular faces each of four of which being defincd by the sides of the parallelogrammatic figure defined bv the contour of the top of the hood and the re spectively underlying corners of the paral lelom'ammatic figure defined bv the contour of the bottom of the hood. while the remaining "four faces are defined by the sides of the parallelogrammatic figure defined by the contour of the bottom of the hood and the rcspectivelv overlviuji corners of the parallelogranunatic figure defined by the contour of the top of the hood. v

3. A gear structure including the base portion of a housing; two upright pinions mounted in such base portion; two upright gear wheels in mesh with said pinions; an upr ght load rod disposed between the planes of rotation of said gears and pinions and located near their place of me hing; pitmen connecting the gear wheels with the upper end ot'the load rod: a guide for directing the upper ends of the pitmen and load rod in the r movement: and a hood fastoned into engagement with the base portion of the housing: and covering said pinions. gear wheels, pitn'icn and guide, the top of the hood having axe of unequal length which intersect at the axis of the load rod: one of the aforesaid axes being: included substantially in the plane of movement of the upper ends of the pitmcn. the contour of the bottom of the hood defining a parallelogrammatic figure having two s des ubstan tiallv parallel with the plane of n'xovcmcnt of the pitmcn and longer than the remaining sides. the axes at the tdp of the h od being perpendicular to the sides of thefigure at the bottom of the hood.

4. A gear structure including: the base portion of a housing; two upright pinions mounted in such base portion: two upright ear whcelsin mesh with said pinions: an upright load rod disposed between the planes of rotation of said gears and pinions and located near their place of meshing; pitmen connecting the gear wheels with the upper end of the load rod: a guide for directing the upper ends of the pitmen and load rod in their movement: and a hood fasmovement of the upper ends of the pitmen.

the contour of the bottom of the hood also defining a para]lelogrannnatit; figure having two sides substantially parallel with the planes of movement of the pitmen and longer than the remaining sides, the axes at the top of the hood being perpendicular to the sides of the figure at the bottom of the hood.

gear structure including the base por tion of a housing; two upright piuions mounted in such base portion; two upright, gear wheels in mesh with said pinions: an upright load rod disposed between the planes of rotation of said gears and pinions and located near their place of meshing; pitmen connecting the gear Wheels with the upper end of the load rod, aguide for directing the upper ends of the pltmen and.

load rod ir their movement; and a hood fastened into engagement with the base port-ion of-the housing and covering said pinions, gear wheels, pitmen and guide, the top of the hood having axes of unequal length whi-h intersect at the axis of the load rod,

in their movement; and a hood fastened into engagement with the base portion of the housing and covering said pinions, gear wheels, pitmen and guide, the top of the hood having a contour which defines a parallelogrammatic figure one of Whose diagonal ax'es is substantially in the plane of movement of the upper ends of the pitmen.

7. A gearing structure; including the base two upright pinions' portion of a housing; gearing mounted in such base porti0n';.a hood covering the gearmg and formed of sheet metal stamping terminating at its upper end in triangular wings having alined openings and jointly serving to constitute a top wall of the hood; and a fastening device for holding the hood in engagement with the base portion of the I, housing and including a member which passes through said alined openings. 7 4 8. A gearing structure including the base portion of a housing;gearing mounted in such base portion; a hood covering the gearing and formed of sheet metal stamping terminating at its upper end in triangular 4 wings having alined openings and jointly serving to constitute a top wall of the hood; a rivet passing through said alined openings for holding the wings in assembly, this rivet. having a hole therethrough; and. a fastening o device for holding the hood in engagement with the base portion of the housing and'ineluding a member which passes through the holein said rivet.

In Witness whereof, I hereunto subscribe 5 my name this 30th day of Sept. A: D. 1914.

LA VERNE NOYES. Witnesses:

L C. WALKER, F. E. SMITH. 

